A combined pin insulator with a split-type skirt

Abstract

This invention discloses a combined pin insulator with a split-type skirt in the field of vibration damping and lever technology. It includes an insulator assembly block, a quick-disassembly mechanism, and a vibration damping structure. The insulator assembly block is composed of umbrella-shaped insulators of different sizes connected in series. The quick-disassembly mechanism is located at the top and includes a connecting column, a sliding top plate, and a pull rod structure. A tension rod and a push rod assembly are connected below the top plate. The top plate is locked via the pull rod structure, which in turn drives the tension rod and push rod to achieve quick disassembly. The vibration damping structure is located at the bottom and provides cushioning through the sliding cooperation of a slider within a sliding frame. This invention solves the problems of easy breakage of rigid insulator connections and difficulties in disassembly and maintenance. The vibration damping design effectively absorbs the impact of strong winds, and the quick-disassembly mechanism significantly shortens repair time, improving the safety and maintenance efficiency of the power grid.

Description

Technical Field

[0001] This utility model relates to the field of power facility technology, and in particular to a combined pin insulator with a split-type skirt. Background Technology

[0002] Pin insulators are indispensable insulation components in overhead power transmission and distribution lines. They are mainly used to support conductors and insulate them from grounding components such as towers. In the daily operation of power systems, insulators not only have to withstand long-term electrical loads, but also have to withstand the test of complex outdoor environments.

[0003] However, traditional pin insulators typically employ an integrated structure and are rigidly fixed to the crossarm using bolts or binding wires. This structural form has gradually revealed significant defects in practical applications. First, the rigid connection method lacks the necessary elastic buffer space. When encountering extreme weather conditions such as typhoons or strong gusts, the enormous instantaneous tension generated by the conductor's galloping will be directly transmitted to the root of the insulator, which can easily lead to brittle fracture of the insulator, thereby causing a line drop accident and seriously threatening the safe and stable operation of the power grid.

[0004] Secondly, since insulators are in a high-altitude environment for a long time, their maintenance and replacement operations are inherently dangerous. The existing fixing methods make the disassembly process extremely cumbersome. Operators need to spend a lot of time at high altitudes to tighten rusted bolts or untie complicated binding wires. This not only leads to low repair efficiency and prolongs power outage time, but also greatly increases the safety risks for operators. In addition, once the integrated structure is partially damaged or the creepage distance needs to be adjusted, the whole structure often needs to be replaced, resulting in a waste of resources.

[0005] Therefore, this utility model proposes a combined pin insulator with a split skirt to overcome the shortcomings of the prior art. Utility Model Content

[0006] To overcome the above shortcomings, this utility model provides a combined pin insulator with a split-type skirt, which aims to improve the problems of some existing pin insulators, such as rigid connection with the support, easy breakage in extreme windy weather, cumbersome installation and disassembly process, long working time at height and low maintenance efficiency.

[0007] This utility model provides a combined pin insulator with a split-type skirt, including an insulator assembly block, a quick disassembly mechanism, and a shock-absorbing structure.

[0008] The insulator assembly block is equipped with a quick disassembly mechanism at the top and a shock-absorbing mechanism at the bottom. The quick disassembly mechanism includes a connecting column, a top plate located above the connecting column, and a tie rod structure on the top plate. A tension rod is fixedly connected to the bottom surface of the top plate, and a push rod one and a push rod two are rotatably connected to the side wall of the tension rod. A rotating wheel is rotatably connected to the bottom end of the tension rod.

[0009] Furthermore, the pull rod structure is used to control the locking or releasing of the top plate and the connecting column. The push rod one and push rod two are used to push outward under the action of the pull rod to achieve disassembly. Through this specific linkage and pull rod locking structure, the quick opening and locking function of the top connection of the insulator is realized, which greatly simplifies the operation process.

[0010] Preferably, the pull rod structure includes a fixed moving groove formed on the top plate, a push rod slidably connected inside the fixed moving groove, and a moving column fixedly connected to the push rod. This groove-rod mating structure ensures the smoothness of transmission and the accuracy of guidance.

[0011] Preferably, the pull rod structure further includes a movable plate slidably connected to the top plate. The end of the moving column away from the push rod is fixedly connected to the movable plate. The movable plate slides under the drive of the moving column. Through the transmission of the moving column, the conversion from the movement of the internal push rod to the sliding of the external plate is realized.

[0012] Preferably, the top plate is provided with a rear baffle, and a locking pin is rotatably connected to the rear baffle. An arc-shaped latch is connected to the outer wall of the locking pin. The arc-shaped latch is used to drive the push rod to move inside the fixed moving groove when the locking pin rotates. The ingenious design converts the operator's rotational action into the linear displacement of the push rod, providing a power source for unlocking.

[0013] Preferably, the pull rod structure further includes a buckle on the top plate and a protrusion on the movable plate. The protrusion is used to block the buckle when the movable plate slides to the locked position. The physical interference between the protrusion and the buckle provides a reliable mechanical lock to prevent accidental dislodgement.

[0014] Preferably, the top of the top plate is provided with a pull ring, which is used to pull the top plate upward when the protrusion releases its obstruction of the buckle. The pull ring facilitates the application of force by the operator in a high-altitude environment and improves the convenience of operation.

[0015] Preferably, the shock-absorbing mechanism includes a sliding frame, a slider slidably connected to the sliding frame, and a connecting groove located below the slider. The slider is used to slide along the sliding frame to provide cushioning when subjected to force. The relative sliding between the slider and the sliding frame provides buffer displacement, effectively absorbing external impact energy.

[0016] Preferably, the insulator assembly includes a first umbrella-shaped insulator and a second umbrella-shaped insulator connected in series. The first umbrella-shaped insulator and the second umbrella-shaped insulator have different sizes. The insulator assembly has an upper interface at the top and a lower interface at the bottom. The modular design allows the insulators to be flexibly combined according to actual needs, making it highly adaptable.

[0017] Preferably, the connecting column is fixedly installed at the upper interface, and the shock-absorbing structure is connected to the lower interface via a slider, thus clarifying the assembly position relationship between the components and ensuring the stability of the overall structure.

[0018] This utility model has the following beneficial effects: 1. This utility model, by setting up a quick disassembly mechanism, utilizes the cooperation of the locking column, push rod and movable card plate in the pull rod structure to achieve quick locking and release of the top plate, and combines the linkage design of the pull rod driving the push rod to push outward, solves the problems of cumbersome installation and disassembly of pin insulators, long high-altitude operation time and high labor intensity in the prior art, and achieves the technical effect of simplifying the maintenance process, significantly improving the efficiency of power line emergency repair and operation safety.

[0019] 2. This utility model solves the problem in the prior art where the rigid connection between the insulator and the support makes it prone to breakage due to instantaneous stress concentration in extreme windy weather. By setting a shock-absorbing mechanism at the bottom of the insulator assembly block and using the sliding cooperation of the slider inside the sliding frame to form a buffer structure, it achieves the technical effect of effectively absorbing impact energy, protecting the main structure of the insulator, and extending the service life of the equipment.

[0020] 3. This utility model, by adopting a split-type insulator assembly block design, sets the umbrella-type insulator as an independent modular unit, which solves the problem in the prior art that the insulator structure is fixed and the insulation capacity cannot be flexibly adjusted according to the actual voltage level or pollution level. It achieves the technical effect of reducing spare parts costs and improving the adaptability of equipment to different working conditions. Attached Figure Description

[0021] Figure 1 A three-dimensional schematic diagram of a combined pin insulator with a split-type skirt proposed in this utility model; Figure 2 This is a schematic diagram of the structure of an insulator assembly block with a split-type skirt and a combined pin insulator proposed in this utility model. Figure 3 This is a schematic diagram of a tie rod structure with a split-type skirt combined pin insulator proposed in this utility model. Figure 4 This is a schematic diagram of the back of a tie rod structure with a split-type skirt combined pin insulator proposed in this utility model. Figure 5 for Figure 4 Enlarged view of point A in the middle; Figure 6 This utility model presents a structural schematic diagram of a shock-absorbing mechanism for a combined pin insulator with a split-type skirt.

[0022] Legend: 1. Insulator assembly block; 11. Lower interface; 12. Umbrella insulator one; 13. Umbrella insulator two; 14. Upper interface; 2. Quick disassembly mechanism; 21. Connecting column; 22. Pull rod; 23. Push rod one; 24. Push rod two; 25. Rotating wheel; 3. Shock-absorbing mechanism; 31. Slider; 32. Sliding frame; 33. Connecting groove; 4. Pull rod structure; 41. Movable plate; 411. Moving column; 412. Push rod; 413. Fixed moving groove; 414. Arc-shaped latch; 415. Locking column; 42. Buckle; 43. Protrusion; 44. Pull ring; 5. Top plate; 51. Rear baffle. Detailed Implementation

[0023] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the protection scope of the present utility model. Example

[0024] Reference Figures 1 to 6 This utility model provides a combined pin insulator with a split-type skirt, which aims to solve the problems of existing pin insulators being difficult to disassemble and maintain quickly and prone to breakage due to rigid connection in extreme windy weather.

[0025] like Figure 1 and Figure 2 As shown, it includes an insulator assembly block 1, a quick-release mechanism 2 installed on the top of the insulator assembly block 1, and a shock-absorbing mechanism 3 installed on the bottom of the insulator assembly block 1. The insulator assembly block 1 is used to provide the main electrical insulation and support for the conductor. The quick-release mechanism 2 is used to quickly lock and separate the top of the insulator from the bracket or line connection component. The shock-absorbing mechanism 3 is used to connect the fixed base and buffer the mechanical impact from the outside.

[0026] The insulator assembly 1 adopts a modular design, including umbrella-type insulator 12 and umbrella-type insulator 23 connected in series. Umbrella-type insulator 12 and umbrella-type insulator 23 have different sizes. This design allows for flexible combination according to the actual voltage level and pollution level. The top of the insulator assembly 1 is provided with an upper interface 14 and the bottom is provided with a lower interface 11 to facilitate the mechanical connection of the upper and lower components. The quick disassembly mechanism 2 and the shock absorption mechanism 3 form an organic linkage with the middle insulator assembly 1.

[0027] Reference Figure 3 , Figure 4 and Figure 5 The quick disassembly mechanism 2 includes a connecting column 21 fixedly connected to the top of the insulator assembly block 1, a top plate 5 slidably sleeved on the outer wall of the connecting column 21, and a pull rod structure 4 set on the top of the top plate 5. The connecting column 21 is fixedly installed at the upper interface 14 to provide guide support for the top plate 5. The top plate 5 can slide along the axial direction of the connecting column 21. A tension rod 22 is fixedly connected to the bottom surface of the top plate 5. The tension rod 22 moves synchronously with the top plate 5. A push rod 1 23 and a push rod 24 are rotatably connected to the side wall of the tension rod 22. A rotating wheel 25 is rotatably connected to the bottom end of the tension rod 22.

[0028] Push rod 23 and push rod 24 are spaced apart along the length of tension rod 22, with the ends of push rod 23 and push rod 24 extending outward from tension rod 22. These are used to push outward when tension rod 22 moves upward, thereby triggering the release mechanism of the external connector to achieve disassembly. The pull rod structure 4 controls the locking or releasing of the position between the top plate 5 and the connecting column 21. The pull rod structure 4 includes a fixed moving groove 413 formed at the top of the top plate 5, and a sliding connection to the fixed moving groove. The push rod 412 inside 413 and the movable column 411 fixedly connected to the top of the push rod 412 are provided. The top plate 5 is also provided with a rear baffle 51. A locking column 415 is rotatably connected to the rear baffle 51. An arc-shaped lock buckle 414 is connected to the outer wall of the locking column 415. The arc-shaped lock buckle 414 abuts against one end of the push rod 412. When the locking column 415 is rotated, the arc-shaped lock buckle 414 rotates accordingly and pushes the push rod 412 to move along the fixed movable groove 413, thereby converting the rotational motion into linear thrust.

[0029] The pull rod structure 4 also includes a movable locking plate 41 slidably connected to the top plate 5. The end of the moving column 411 away from the push rod 412 is fixedly connected to the movable locking plate 41. The movable locking plate 41 slides under the action of the moving column 411. The top plate 5 is provided with a buckle 42. The movable locking plate 41 is provided with a protrusion 43. The protrusion 43 is used to block the buckle 42 when the movable locking plate 41 slides to the locked position, thereby restricting the movement of the top plate 5. The top of the top plate 5 is provided with a pull ring 44. The pull ring 44 is used to lift the top plate 5 upward when the protrusion 43 releases its block on the buckle 42.

[0030] Reference Figure 6 The shock-absorbing mechanism 3 includes a sliding frame 32 and a slider 31 slidably connected inside the sliding frame 32. The bottom of the slider 31 is provided with a connecting groove 33. The slider 31 is fixedly connected to the lower interface 11 at the bottom of the insulator assembly block 1 through the connecting groove 33. This sliding fit structure between the slider 31 and the sliding frame 32 allows the slider 31 to move along the sliding frame 32 to absorb and buffer the impact energy when the insulator is subjected to strong wind and shakes or is subjected to tension, thereby preventing the rigid connection from breaking.

[0031] The umbrella-type insulator 12 and umbrella-type insulator 23 of the insulator assembly block 1 are connected in series by threaded or flanged connections. This allows for quick completion of maintenance and replacement of individual insulators through standard interfaces, regardless of whether the need is to increase or decrease voltage levels or to meet the requirements of replacing different voltage levels, thus reducing maintenance costs. The top plate 5 and its attached tie rod structure 4 are preferably made of high-strength and corrosion-resistant metal materials, such as stainless steel or galvanized steel. The contact surfaces of the push rod 412 and the fixed moving groove 413 are precision machined to ensure that they can maintain their integrity even under long-term outdoor exposure. Smooth sliding performance avoids jamming caused by rust. The mating surfaces of the protrusion 43 and the buckle 42 are designed with a certain chamfer or groove structure. When the protrusion 43 blocks the buckle 42, this structure can provide clear tactile feedback and prevent accidental unlocking due to slight vibration, ensuring that the top plate 5 is always locked under non-human operation. A lubricating layer or wear-resistant pad can be provided between the sliding frame 32 and the slider 31 to reduce frictional resistance when the slider 31 slides along the sliding frame 32, making the response to the instantaneous pulling force caused by strong wind more sensitive. At the same time, the stroke design of the sliding frame 32 should be precisely calculated to meet the maximum requirements.

[0032] The implementation principle of this application embodiment is as follows: When it is necessary to assemble or adjust the insulators on site according to the voltage level, the operator combines and connects umbrella insulator one 12 and umbrella insulator two 13 in series through the modular interface of the insulator assembly block 1. If the current is large or the voltage requirement is high, more units can be connected in series at the upper interface 14. Then, the shock-absorbing mechanism 3 is installed at the bottom lower interface 11, and the quick disassembly mechanism 2 is installed at the top upper interface 14.

[0033] Under normal operating conditions, the tie rod structure 4 is locked. At this time, the protrusion 43 on the movable plate 41 blocks the buckle 42 on the top plate 5, restricting the upward movement of the top plate 5 relative to the connecting column 21. The insulator assembly block 1 stably supports the conductor. When encountering extreme windy weather, the strong wind blows the conductor and insulator, causing violent shaking or instantaneous tension. The shock-absorbing mechanism 3 plays a role. The slider 31 slides vertically in the sliding frame 32 under force. This sliding process absorbs and buffers the impact energy, preventing the rigid connection point from being subjected to excessive stress and breaking.

[0034] When quick disassembly or maintenance is required, the operator first rotates the locking pin 415 located on the rear baffle 51. The rotation of the locking pin 415 causes the arc-shaped latch 414 to deflect. The arc-shaped latch 414 pushes the push rod 412 to slide in the fixed moving groove 413. The push rod 412 drives the movable plate 41 to slide synchronously through the moving pin 411 until the protrusion 43 no longer blocks the latch 42. At this time, the top plate 5 is unlocked. The operator holds the pull ring 44 and pulls the top plate 5 upward. The top plate 5 drives the pull rod 22 to move upward. The pull rod 22 then drives the push rod 1 23 and push rod 24 to move outward to push the external connecting structure, realizing quick separation and disassembly.

Claims

1. A combined pin insulator with a split-type skirt, comprising; Insulator assembly block (1); characterized in that The insulator assembly block (1) is provided with a quick disassembly mechanism (2) at the top and a shock-absorbing mechanism (3) at the bottom; The quick disassembly mechanism (2) includes a connecting column (21), a top plate (5) located above the connecting column (21), and a pull rod structure (4) provided on the top plate (5). A pull rod (22) is fixedly connected to the bottom surface of the top plate (5). A push rod one (23) and a push rod two (24) are rotatably connected to the side wall of the pull rod (22). A rotating wheel (25) is rotatably connected to the bottom end of the pull rod (22). The pull rod structure (4) is used to control the position locking or releasing of the top plate (5) and the connecting column (21). The push rod one (23) and the push rod two (24) are used to push outward under the drive of the pull rod (22) to achieve disassembly.

2. A combined pin-type insulator with split shed according to claim 1, characterized in that, The tie rod structure (4) includes a fixed moving groove (413) opened on the top plate (5), a push rod (412) slidably connected inside the fixed moving groove (413), and a moving column (411) fixedly connected to the push rod (412).

3. A combined pin-type insulator with split shed according to claim 2, characterized in that The pull rod structure (4) also includes a movable plate (41) slidably connected to the top plate (5). The end of the moving column (411) away from the push rod (412) is fixedly connected to the movable plate (41). The movable plate (41) slides under the action of the moving column (411).

4. A combined pin-type insulator with split shed according to claim 2, characterized in that, The top plate (5) is provided with a rear baffle (51), and a locking pin (415) is rotatably connected to the rear baffle (51). An arc-shaped buckle (414) is connected to the outer wall of the locking pin (415). The arc-shaped buckle (414) is used to drive the push rod (412) to move inside the fixed moving groove (413) when the locking pin (415) rotates.

5. A combined pin-type insulator with split shed according to claim 3, characterized in that, The pull rod structure (4) also includes a buckle (42) on the top plate (5) and a protrusion (43) on the movable plate (41), the protrusion (43) being used to block the buckle (42) when the movable plate (41) slides to the locked position.

6. A combined pin-type insulator with split shed according to claim 5, characterized in that The top plate (5) is provided with a pull ring (44), which is used to lift the top plate (5) upward when the protrusion (43) releases its block against the buckle (42).

7. A combined pin-type insulator with split shed according to claim 1, characterized in that, The shock-absorbing mechanism (3) includes a sliding frame (32), a slider (31) slidably connected to the sliding frame (32), and a connecting groove (33) provided below the slider (31). The slider (31) is used to slide along the sliding frame (32) to provide cushioning when subjected to force.

8. A combined pin insulator with a split-type skirt according to claim 7, characterized in that, The insulator assembly (1) includes a first umbrella insulator (12) and a second umbrella insulator (13) connected in series. The first umbrella insulator (12) and the second umbrella insulator (13) have different sizes. The insulator assembly (1) has an upper interface (14) at the top and a lower interface (11) at the bottom.

9. A combined pin insulator with a split-type skirt according to claim 8, characterized in that, The connecting column (21) is fixedly installed at the upper interface (14), and the shock-absorbing structure (3) is connected to the lower interface (11) through the slider (31).

Images